Tone is 'the attitude that is conveyed by the narrator of a story'. A reader can be persuaded by a writer's use of tone particularly if it matches the readers own 'feelings' on the subject.
For example in Mein Kampf Hitler used a very superior tone - which matched the sentiments of the general population of Germany at the time.
“The same little featherhead!”, “That is like a woman!”, “What is this! Is my little squirrel out of temper?”
The are the three best options that show Torvald sometimes treats Nora like a child. Calling Nora a "little featherhead" and "little squirrel out of temper" gives her appearance of a person who is not very wise or intelligent. It makes her seem innocent and ignorant much like a child would be. When Torvald says, "That is like a woman!", it is not just a statement of fact. Torvald sees women as innocent, ignorant and helpless much like a child would be. The other two options do not fit because that do not show that Torvald thinks of Nora as a child.
A substance that makes you numb or fall asleep, only safe medically used.
The messege i get from it is dont judge a book by its cover. even if it seems scary.